A teenager has been arrested in the US state of Oregon after allegedly plotting to carry out a car bomb attack at a Christmas tree lighting ceremony.
Somali-born Mohamed Osman Mohamud, 19, was arrested after reportedly making a telephone call he thought would set off the bomb in the centre of Portland.
However, the bomb was a fake supplied by agents in a sting operation.
Mr Mohamud is a naturalised US citizen who had allegedly been in contact with an associate in north-west Pakistan.
He has been charged with attempting to use a weapon of mass destruction. BBC News